Define behavior of "stack-probe-size" attribute when inlining.

Also document the attribute, since "probe-stack" already is.

Reviewed By: majnemer

Differential Revision: https://reviews.llvm.org/D34528

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306069 91177308-0d34-0410-b5e6-96231b3b80d8
4 files changed